In the 1920s, the lure of air conditioning alone was enough to get people into movie theaters.

Many marquees placed as much or more emphasis on the “refrigerated air” than the film being shown.

But, heat be darned, watching movies under the stars has become a quintessential part of summer, even in the miserableness of the desert.

It isn’t the same as air conditioning, but at least three outdoor screening series offer the relief of watching a movie from the comfort of a swimming pool. For the others, well, maybe your kid’s fidget spinner will provide a bit of a breeze.

Here’s a look at the movies playing at eight of the valley’s outdoor venues. And, for those of you who just can’t resist the siren’s call of chilled air, there’s even a free series of movies at Fashion Show mall.

Swim or lounge in the Boulevard Pool every Monday. Doors open at 7 p.m., and the movies start at 7:30 p.m. Handcrafted, movie-themed cocktails and snacks are available for purchase. Admission is $5 and free for hotel guests and children younger than 5.

Float in the DayDream pool or rent a cabana or daybed. Popcorn, candy and drinks will be available. Movies begin at dusk, and admission is free.

■ Thursday: “Ferris Bueller’s Day Off”

■ June 22: “Minions” and “The Little Mermaid”

■ July 6 : “Clueless” and “Mean Girls”

■ July 20: “Pirates of the Caribbean: Curse of the Black Pearl” and “Jaws”

■ Aug. 3: “Scary Movie” and “Scream”

■ Aug. 17: “Superbad” and “Pineapple Express”

Topgolf

Guests 21 and older may lounge by or in the Hideaway Pool while watching movies on the big screen. Movies begin at 8 p.m., and admission is free. (The series will continue through Labor Day, but the remaining titles haven’t been announced.)

Sunset Cinema will provide attendees a set of headphones with self-controlled volume for the free outdoor movie series. Guests may bring their own picnic basket, purchase a pre-made basket or buy drinks at the bar. The Green will open at 6 p.m., and the movies will begin at dusk.

Movies on the Green begin at sundown each Thursday starting June 22. Each movie is preceded by live entertainment and activities for kids. Admission is free.

■ June 22: “Storks”

■ June 29: “The Wild Life”

■ July 6: “Sing”

■ July 13: “Finding Dory”

■ July 20: “The Lego Batman Movie”

■ July 27: “The Secret Life of Pets”

■ Aug. 3: “Moana”

■ Aug. 10: “Rock Dog”

Downtown Summerlin

The Summer Screen Series showcases family-friendly movies at dusk on Park Centre Drive near H&M. Admission is free. VIP seating is available with a minimum $25 purchase that day at Downtown Summerlin.

■ July 27: “Frozen”

■ Aug. 3: “Moana”

■ Aug. 10: “The Lego Batman Movie”

■ Aug. 17: “Beauty and the Beast”

■ Aug. 24: “Rogue One: A Star Wars Story”

■ Aug. 31: “Fantastic Beasts and Where to Find Them”

Fashion Show mall

Free family movies will be screened at 11:30 a.m. Wednesdays indoors in the Great Hall. Free treats from Sugar Factory and Pepsi product samplings will be available.

■ June 21: “Moana”

■ June 28: “Rogue One: A Star Wars Story”

■ July 5: “Sing”

■ July 12: “Pete’s Dragon”

■ July 19: “The Angry Birds Movie”

■ July 26: “Finding Dory”

■ Aug. 2: “The Lego Batman Movie”

■ Aug. 9: “A Dog’s Purpose”

Movies for a dollar

If you’d rather see a movie in an actual theater, with niceties such as concession stands and air conditioning, these two screening series offer cheap and easy ways to entertain your kids this summer.

Regal’s Summer Movie Express

Admission is $1 at 10 a.m. Tuesdays and Wednesdays at Aliante Casino, Colonnade, Texas Station and Village Square. Each week, both movies play both days. A portion of the proceeds will go to the Will Rogers Institute.

■ June 13-14: “Kung Fu Panda 3” and “Ice Age: Collision Course”

■ June 20-21: “Trolls” and “Alvin and the Chipmunks: Chipwrecked”

■ June 27-28: “Monster Trucks” and “Penguins of Madagascar”

■ July 4-5: “Rio 2” and “The Boxtrolls”

■ July 11-12: “The Secret Life of Pets” and “Sing”

■ July 18-19: “Kubo and the Two Strings” and “Ratchet and Clank”

■ July 25-26: “The SpongeBob Movie: Sponge Out of Water” and “The Adventures of Tintin”